<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>饿了么外卖</title>
  <style type="text/css">
    body {
      font-family: 'Arial', sans-serif;
      background-color: #f4f4f4;
      background-size: cover;
      background-position: center;
      margin: 0;
      height: 100vh;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .login-form {
      background-color: rgba(255, 255, 255, 0.9);
      padding: 20px;
      border-radius: 8px;
      box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
      text-align: center;
    }

    .form-input {
      width: 100%;
      padding: 10px;
      margin: 8px 0;
      box-sizing: border-box;
      text-align: left;
    }

    .submit-btn {
      width: 100%;
      background-color: #3498db;
      color: #fff;
      padding: 10px;
      border: none;
      border-radius: 4px;
      cursor: pointer;
      font-size: 16px;
      transition: background-color 0.3s;
    }

    .submit-btn:hover {
      background-color: #2980b9;
    }
  </style>
</head>
<body>
<div class="login-form">
  <h2>饿了么后台管理登录页面</h2>
  <form action="/login" method="post">
    <label for="username">账号：</label>
    <input type="text" id="username" name="username" placeholder="..." class="form-input">
    <br/>
    <label for="password">密码：</label>
    <input type="password" id="password" name="password" placeholder="..." class="form-input">
    <br/>
    <input type="submit" value="登录" class="submit-btn">
  </form>
</div>
</body>
</html>
